It is feared the teenager is one of a growing number of schoolchildren to have been radicalised online iStock

Police fear a teenage German schoolgirl may have been lured to Syria by Islamic State extremists and recruited by the terror group. Linda Wenzel, 15, is said to have fallen in love with a Muslim man she met online, who persuaded her to move to Syria via Turkey to join him.

Linda, who is from Pulsnitz in Eastern Germany told her mother that she was going to stay with friends for the night, however when she did not return, her mother called the friend only to find she had never gone to her house.

After she was reported missing, police searched her bedroom where they discovered a print out of a plane ticket to Turkey under her bed. It later emerged that the teenager had forged a letter from her mother enabling her to withdraw money from the bank. She then used the counterfeit bank authorisation and her mother's forged identification papers to buy the ticket to Istanbul.

"When she did not come back and then I found out she had never even been there, I called the police," her mother explained. "In her room they found a print of a plane ticket to Istanbul under the mattress.

"I was shocked, my daughter has never stolen or lied about anything before. I am devastated by the fact that she was apparently completely brainwashed and persuaded to leave the country by someone and that she managed to hide it from me."

By the time her mother had realised what she had done, Linda was already on a flight bound for Turkey.

Its feared the schoolgirl may have been radicalised online by the man after friends revealed she had recently developed a keen interest in Islam. She had started learning Arabic, adopting a more conservative style of dress and insisted on taking the Koran to school.

An international search has been launched for the girl whose whereabouts are yet unknown, Mail Online reports.